For instance,even native speakers are often not sure when to use "lie" and when to use "lay."

VOA: special.2010.02.11

And you can do different programs, you get to speak to native speakers.

你可以做不同的项目，要多和以英语为母语的人说话。

英语学习技巧 - SpeakingMax英语口语达人

Other languages don't have that distinction and so those distinctions are very difficult for non-native English speakers to learn.

其他语言并没有这样的差别,所以非英语母语的说话者,很难发现这些差别

耶鲁公开课 - 心理学导论课程节选

They wanted to study how non-native speakers pronounce different sounds.

VOA: special.2011.08.04

At Indiana University in Bloomington, sixty percent of students who use the Office of Writing Tutorial Services are non-native English speakers.

VOA: special.2009.04.16

Non-native English speakers take the test to demonstrate their English skills when seeking a new job or a promotion.

VOA: special.2010.02.18

Graduate tutor Lars Soderlund says non-native English speakers generally have some trouble with English grammar.

VOA: special.2009.04.30

It includes resources that can help non-native English speakers.

VOA: special.2010.02.11

The other half are native English speakers.

VOA: special.2010.06.17